Induction mapping of Nd{sub 2}Fe{sub 14}B magnetic domains by electron holography

Journal Article · Sun Mar 01 00:00:00 EST 1998 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.121060· OSTI ID:615360

McCartney, M R ^[1]; Zhu, Y ^[2]

---

1. Center for Solid State Science, Arizona State University, Tempe, Arizona85287 (United States)
2. Department of Applied Sciences, Brookhaven National Laboratory, Upton, New York11973 (United States)

The induction of 90{degree} magnetic domains in a Nd{sub 2}Fe{sub 14}B hard magnet has been mapped at high spatial resolution using off-axis electron holography. Line profiles from the reconstructed phase image established an upper limit for domain wall width of 10 nm. Thermal annealing resulted in domain wall movement, magnetization rotation, and evidence for pinning at a structural defect. {copyright} {ital 1998 American Institute of Physics.}

• OSTI ID: 615360
• Journal Information: Applied Physics Letters, Vol. 72, Issue 11; Other Information: PBD: Mar 1998
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
FERROMAGNETIC MATERIALS
PERMANENT MAGNETS
NEODYMIUM ALLOYS
IRON ALLOYS
BORON ALLOYS
HOLOGRAPHY
DOMAIN STRUCTURE
MAPPING
MAGNETIZATION
ANNEALING